// Google Maps
var map = null;
var geocoder = null;
var gdir;

function gm_initialize() {
  if (GBrowserIsCompatible()) {
    map = new GMap2(document.getElementById("map_canvas"));
    gdir = new GDirections(map, document.getElementById("date_routeplanning_result"));

    var customUI = map.getDefaultUI();
    map.setUI(customUI);

    //map.addControl(new GSmallMapControl());
    //map.addControl(new GMapTypeControl());

    //map.setCenter(new GLatLng(37.4419, -122.1419), 13);
    geocoder = new GClientGeocoder();
    
    GEvent.addListener(gdir, "error", gm_handleErrors);
  }
}

function gm_setDirections(fromAdress, toAdress, locale) {
    
    gdir.load("from: " + fromAdress + " to: " + toAdress,
            { "locale": locale });
}

function gm_showAddress(address) {
  if (geocoder) {
    geocoder.getLatLng(
      address,
      function(point) {
        if (!point) {
          alert(address + " wurde nicht gefunden!");
        } else {
          map.setCenter(point, 13);
          var marker = new GMarker(point);
          map.addOverlay(marker);
          marker.openInfoWindowHtml(address);
        }
      }
    );
  }
}

function gm_handleErrors(){
       if (gdir.getStatus().code == G_GEO_UNKNOWN_ADDRESS)
         alert("Die Adresse konnte nicht gefunden werden.\nError code: " + gdir.getStatus().code);
       else if (gdir.getStatus().code == G_GEO_SERVER_ERROR)
         alert("Die Adresse konnte nicht gefunden werden.\n Error code: " + gdir.getStatus().code);
       
       else if (gdir.getStatus().code == G_GEO_MISSING_QUERY)
         alert("The HTTP q parameter was either missing or had no value. For geocoder requests, this means that an empty address was specified as input. For directions requests, this means that no query was specified in the input.\n Error code: " + gdir.getStatus().code);

    //   else if (gdir.getStatus().code == G_UNAVAILABLE_ADDRESS)  <--- Doc bug... this is either not defined, or Doc is wrong
    //     alert("The geocode for the given address or the route for the given directions query cannot be returned due to legal or contractual reasons.\n Error code: " + gdir.getStatus().code);
         
       else if (gdir.getStatus().code == G_GEO_BAD_KEY)
         alert("The given key is either invalid or does not match the domain for which it was given. \n Error code: " + gdir.getStatus().code);

       else if (gdir.getStatus().code == G_GEO_BAD_REQUEST)
         alert("A directions request could not be successfully parsed.\n Error code: " + gdir.getStatus().code);
        
       else alert("An unknown error occurred.");
       
    }